Merge branch 'main' of https://github.com/ace-step/ACE-Step-1.5 into main

acestep/api_server.py

@@ -280,6 +280,15 @@ def create_app() -> FastAPI:
     INITIAL_AVG_JOB_SECONDS = float(os.getenv("ACESTEP_AVG_JOB_SECONDS", "5.0"))
     AVG_WINDOW = int(os.getenv("ACESTEP_AVG_WINDOW", "50"))
 
+    def _path_to_audio_url(path: str) -> str:
+        """将本地文件路径转换为可下载的相对 URL"""
+        if not path:
+            return path
+        if path.startswith("http://") or path.startswith("https://"):
+            return path
+        encoded_path = urllib.parse.quote(path, safe="")
+        return f"/v1/audio?path={encoded_path}"
+
     @asynccontextmanager
     async def lifespan(app: FastAPI):
         # Clear proxy env that may affect downstream libs
@@ -736,9 +745,9 @@ def create_app() -> FastAPI:
                     progress=None,
                 )
                 return {
-                    "first_audio_path": first,
-                    "second_audio_path": second,
-                    "audio_paths": paths,
+                    "first_audio_path": _path_to_audio_url(first) if first else None,
+                    "second_audio_path": _path_to_audio_url(second) if second else None,
+                    "audio_paths": [_path_to_audio_url(p) for p in (paths or [])],
                     "generation_info": gen_info,
                     "status_message": status_msg,
                     "seed_value": seed_value,
@@ -1082,6 +1091,25 @@ def create_app() -> FastAPI:
             "version": "1.0",
         }
 
+    @app.get("/v1/audio")
+    async def get_audio(path: str):
+        """Serve audio file by path."""
+        from fastapi.responses import FileResponse
+
+        if not os.path.exists(path):
+            raise HTTPException(status_code=404, detail=f"Audio file not found: {path}")
+
+        ext = os.path.splitext(path)[1].lower()
+        media_types = {
+            ".mp3": "audio/mpeg",
+            ".wav": "audio/wav",
+            ".flac": "audio/flac",
+            ".ogg": "audio/ogg",
+        }
+        media_type = media_types.get(ext, "audio/mpeg")
+
+        return FileResponse(path, media_type=media_type)
+
     return app